Web Development Beginner

What is JSON?

JavaScript Object Notation — a lightweight data interchange format that is easy for humans to read and machines to parse.

JSON represents structured data using key-value pairs and arrays. It supports strings, numbers, booleans, null, objects ({}), and arrays ([]). Example: {"name": "John", "age": 30, "hobbies": ["coding", "reading"]}.

JSON is the dominant format for web APIs, configuration files, and data storage. It is language-independent and supported by virtually every programming language. Related formats include YAML (more readable) and TOML (for configuration).

Learn More About This Topic

API Basics: REST & JSON Explained

Directly covers this topic

JavaScript ES6+ Modern Features

Related reading

JavaScript Fundamentals

Related reading

Related Terms

Web Font Optimization

Techniques for loading custom fonts efficiently to minimize their impact on page load performance and visual stability.

The latest HTTP version that uses QUIC instead of TCP, providing faster connections and better performance on unreliable networks.

A JavaScript file that runs in the background, enabling offline support, push notifications, and background sync for web apps.

A small piece of data stored in the browser by a website to remember user preferences, login state, or tracking information.

REST (Representational State Transfer)

An architectural style for designing networked applications using standard HTTP methods and stateless communication.

Web Caching Strategies

Techniques for storing copies of web resources at various levels to reduce server load, bandwidth, and response times.

View All Web Development Terms →